Muscle contraction steps Flashcards

1
Q

Stap 1

A

Signaal komt via een neuron aan

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2
Q

Stap 2

A

Acetylcholine wordt vanaf het neuron in de synaptische spleet losgelaten

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3
Q

Stap 3

A

Acetylcholine bindt aan receptoren aan de plasmamembraan van de spiercel

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4
Q

Stap 4

A

De impuls reist verder de spier in via t-tubuli

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5
Q

Stap 5

A

Calcium wordt uit het sarcoplasmatisch reticulum vrijgelaten

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6
Q

Stap 6

A

Calcium bindt aan het troponineC

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7
Q

Stap 7

A

TnT tropomyosine en TnI gaan uit de weg, waardoor actine binding sites worden vrijgemaakt

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8
Q

Stap 8

A

Myosine bindt aan actine binding sites

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9
Q

Stap 9

A

Dit gebeurt vaak, waardoor actine naar myosine wordt toe getrokken (crossbridge cyclus)

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10
Q

Stap 10

A

Acetylcholine wordt verwijderd

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11
Q

Stap 11

A

Calcium gaat weer het SR in

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12
Q

Stap 12

A

De link tussen actine en myosine wordt afgebroken door ATP afbraak

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13
Q

Stap 13

A

Troponine verbergt weer de actine binding sites

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